My ear is still clogged after my flight yday & had a recent cold. Is there anything I can take otc?

Decongestants. For 3 days and 3 days only you could try some over the counter decongestant nasal spray such as afrin. You can also take sudafed and then try to clear your ears by holding your nose and blowing. If your ear remains blocked despite this get into see an ENT doctor for a careful exam.
Afrin (oxymetazoline) You can try some afrin nasal spray and an over the counter oral decongestant. Try to gently clear your ears ... " valsalva.".